Neon Tetra

The Neon Tetra is one of the most popular freshwater aquarium fish, loved for its vibrant electric blue stripe and contrasting red lower body. Native to the soft, blackwater streams of South America, these small schooling fish add brilliant color and movement to planted aquariums. Their peaceful nature and striking appearance make them a staple for community tanks.

Neon Tetra (Paracheirodon innesi) – Complete Care Guide Description The Neon Tetra is one of the most popular freshwater aquarium fish, loved for its vibrant electric blue stripe and contrasting red lower body. Native to the soft, blackwater streams of South America, these small schooling fish add brilliant color and movement to planted aquariums. Their peaceful nature and striking appearance make them a staple for community tanks. Water Parameters Stable, soft, and slightly acidic water is ideal: Temperature: 22–26°C (72–79°F) pH: 5.5–7.0 Hardness: 1–10 dGH Tank Size: Minimum 40 liters (10 gallons) Water Flow: Gentle to moderate Water Changes: 20–30% weekly Care & Maintenance Neon Tetras are beginner-friendly but thrive best with proper care: Keep in groups of at least 8–10 for natural schooling behavior. Provide a planted tank with shaded areas and open swimming space. Maintain stable water conditions—they are sensitive to sudden changes. Use soft lighting to mimic their natural habitat. Feed a varied diet: high-quality flakes, micro pellets, and occasional frozen/live foods (daphnia, brine shrimp). Ensure good filtration but avoid strong currents. Behaviour & Temperament Extremely peaceful and social schooling fish. Active swimmers, mostly occupying mid-water levels. Feel secure and display better color in groups. Non-aggressive and ideal for calm environments. May become shy or stressed if kept in small numbers. Compatibility Perfect for peaceful community aquariums. Compatible with small, non-aggressive fish. Avoid large or predatory species. Suitable Tank Mates Other small tetras (Ember, Cardinal, Rummy Nose) Rasboras Guppies, mollies, platies Corydoras catfish Dwarf gouramis Small peaceful loaches Tank Mates to Avoid Large cichlids (Oscars, African cichlids) Aggressive or fin-nipping fish Large predatory fish Very active or boisterous species Fish that may see them as food Pro Tips Add Neons only to a mature, cycled tank—they are sensitive to new tank syndrome. Use dark substrate and background to enhance their colors. Keep water slightly acidic and soft for best health. Acclimate slowly to avoid shock. Feed small amounts 1–2 times daily. Regular maintenance helps prevent common issues like stress and disease. Summary The Neon Tetra is a colorful, peaceful, and easy-to-care-for fish that brings life and brilliance to any community aquarium. With proper group size, stable water conditions, and compatible tank mates, they thrive and create a mesmerizing schooling display.